The amount next to W-2 box 12 code TT is your qualified overtime compensation for 2026. It is the only number the IRS will accept for the "no tax on overtime" deduction, which you claim on Schedule 1-A when you file in early 2027. It covers just the "half" of time-and-a-half, so expect it to be roughly one-third of your total overtime pay. You can deduct up to $12,500 of it ($25,000 on a joint return), and that limit shrinks once your modified adjusted gross income goes above $150,000 ($300,000 joint). If Code TT is missing or wrong, ask your employer for a corrected W-2 before you file.
Last updated: October 24, 2026 · By Syed Kaja Moinudeen
- Code TT is new on the 2026 Form W-2. Employers are required to report the full premium portion of FLSA-required overtime in that box.
- Only the premium above your regular rate counts. If you earned $10,800 of time-and-a-half pay, Code TT would show about $3,600.
- The deduction is capped at $12,500 per return ($25,000 married filing jointly) and phases out above $150,000 MAGI ($300,000 joint).
- For 2026 you can't deduct more than the Code TT amount. If it's wrong, your employer has to fix it with a Form W-2c.
- The deduction lowers federal income tax only. Social Security and Medicare taxes still apply to your overtime.
What Is W-2 Box 12 Code TT? (New for Tax Year 2026)
Box 12 on your W-2 is where your employer lists special amounts using letter codes. Code DD, for example, shows the cost of employer health coverage. For tax year 2026 the IRS added Code TT for qualified overtime compensation. The 2026 General Instructions for Forms W-2 and W-3 define it as overtime pay above your regular rate, paid under section 7 of the Fair Labor Standards Act. In plain terms, it's the "and-a-half" part of time-and-a-half.
The deduction comes from the law signed July 4, 2025 (Public Law 119-21), which the IRS now calls the Working Families Tax Cuts. It applies to tax years 2025 through 2028. In August 2026 the IRS released updated FAQs, Fact Sheet FS-2026-13, which confirm that employers must report qualified overtime in Box 12 using Code TT starting with 2026 wages.
Code TT does not change your Box 1 wages. Your full paycheck, overtime included, stays in Box 1 as taxable wages. Code TT is an informational figure that you carry to your tax return so the deduction can come off there.
One small detail: a paper W-2 has room for only four Box 12 entries. If you already have several codes, such as DD, D and W, your employer may put Code TT on a second W-2. Check every W-2 you get from that employer.
Why Your Code TT Amount Is Smaller Than Your Total Overtime Pay (The FLSA Half-Time Premium Rule)
This is where most people get confused. Say you earn $24 an hour and work overtime at $36 an hour. The first $24 of each overtime hour is pay you'd get for any hour of work. Only the extra $12 is the overtime premium, and that premium is the only part the law treats as "qualified."
The IRS FAQ gives a formula for most hourly employees. For each workweek, take the hours over 40, multiply by one-half, then multiply by your FLSA regular rate (IRS Q&A on qualified overtime). Your employer runs this calculation. You don't have to, but knowing the formula lets you check their work.
Two more rules can shrink the number:
- Only overtime the FLSA requires counts. Some employers pay double time, or pay overtime for working over 8 hours a day because of state law or a union contract. Anything beyond what federal law requires is not qualified. In one IRS example, an employer paid $400 for 10 overtime hours and only $100 counted.
- FLSA-exempt workers get nothing. If you're exempt from federal overtime rules, such as many salaried managers, overtime you receive under a state law or union contract still doesn't qualify. The IRS notes that air carrier employees like flight attendants are generally exempt and can't take the deduction.
Worked Example: Calculating Qualified Overtime From a Real Paycheck
Maria works at a warehouse and earns $24 an hour. Here is one 50-hour week:
- Regular pay: 40 hours × $24 = $960
- Overtime pay: 10 hours × $36 = $360
- Gross pay for the week: $1,320
- Qualified overtime that week: 10 hours × $12 = $120
Suppose Maria logs 300 overtime hours over 2026. Her total overtime pay is 300 × $36 = $10,800. Her Code TT amount should be about 300 × $12 = $3,600. That's what she deducts, not $10,800.
If her top federal bracket is 12%, a $3,600 deduction cuts her federal income tax by about $432 (12% × $3,600). That's real money, though far less than "no tax on overtime" makes it sound. Her employer's figure could be a little different if her FLSA regular rate includes extra pay beyond her base wage. Each employer calculates that under federal wage rules.
Who Qualifies for the Overtime Deduction (and Who Doesn't)
According to the IRS FAQ and the IRS overview page, you can claim the deduction if:
- You received overtime that section 7 of the FLSA requires, which generally means you're a non-exempt employee paid at least time-and-a-half for hours over 40 in a workweek.
- You have a Social Security number valid for employment. On a joint return where both spouses had qualified overtime, both spouses need one, and both numbers must appear on the return.
- If you're married, you file jointly. Married filing separately can't take the deduction.
You don't have to itemize. The IRS says the deduction is available whether or not you itemize, so you can take it along with the standard deduction.
2026 Deduction Limits: $12,500 / $25,000 Cap and the $150,000 / $300,000 MAGI Phase-Out
Your deduction is the smaller of two numbers: your Code TT total, or your cap after the income phase-out. Under IRS processing guidance in the Internal Revenue Manual, the cap drops by $100 for every $1,000 of modified adjusted gross income (MAGI) over the threshold. For most people MAGI is simply their adjusted gross income. You add back certain excluded income, such as the foreign earned income exclusion or excluded Puerto Rico income (IRS MAGI page).
| Filing status | Maximum deduction | Phase-out begins (MAGI) | Example |
|---|---|---|---|
| Single / head of household | $12,500 | $150,000 | MAGI $165,000: cap falls by $1,500 to $11,000 |
| Married filing jointly | $25,000 | $300,000 | MAGI $320,000: cap falls by $2,000 to $23,000 |
| Married filing separately | Not allowed | — | Must file jointly to claim |
Here's how the cap works in practice. A single filer with $14,000 in Code TT and a MAGI of $165,000 can deduct $11,000, the lower of $14,000 and the reduced $11,000 cap. Maria, at $3,600 of qualified overtime and a much lower income, deducts the full $3,600. Most hourly workers never come near the cap.
Your employer still has to report the full amount, even when it's above the cap. In the IRS's own example, an employee had $30,000 of qualified overtime and the employer had to put all $30,000 under Code TT. The cap applies on your return, not on the W-2.
Step-by-Step: How to Claim the Overtime Deduction on Schedule 1-A With Your 2026 W-2
- Gather every W-2. Find Code TT in Box 12 on each one, including any second W-2 from the same employer.
- Add the Code TT amounts. If you changed jobs, total them. The Form 1040 instructions include a worksheet for overtime from more than one employer.
- Figure your MAGI. Schedule 1-A walks you through it. If you don't have excluded foreign or Puerto Rico income, it's generally the AGI from your Form 1040.
- Complete the qualified overtime section of Schedule 1-A. The amount on the last line of that section is your deduction (FS-2026-13). On the 2025 form this was Part III. The 2026 draft Schedule 1-A renumbers the lines, so use the final 2026 version when it comes out.
- Carry the total to Form 1040. Schedule 1-A also covers the tips, car loan interest and senior deductions, and its total moves to your 1040 (IRS Schedule 1-A overview).
Tax software will ask about Box 12 codes as you enter each W-2, and most programs fill in Schedule 1-A for you. Even so, check that the Code TT figure came through correctly.
Code TT Missing or Wrong on Your W-2? How to Get a Corrected W-2 Before You File
For 2026 this is the step that matters most. The IRS FAQ says any amount not reported under Code TT may not be considered for the deduction, and the 2025 transition relief doesn't carry over to later years. If you worked overtime and Code TT is blank or looks too low, you can't simply work out your own number the way some workers did for 2025.
What to do:
- Check it against your last pay stub. Find your year-to-date overtime hours and work out roughly hours × half your regular rate. If Code TT is far off, write down why.
- Ask payroll or HR for a corrected W-2. According to the IRS, employers fix errors in the Code TT amount, whether too high or too low, by filing a Form W-2c and giving you a copy.
- Bring in the IRS if needed. If your employer hasn't fixed it by the end of February, the IRS says to call 800-829-1040 or visit a Taxpayer Assistance Center. The IRS can send your employer a letter asking for a corrected form.
- If you already filed, file Form 1040-X once the corrected W-2 arrives so you get the deduction you're owed.
The reverse also applies. If Code TT is too high, for example because it counts double-time premiums the FLSA doesn't require, you can deduct only the qualified amount you were actually paid. Don't claim more than that just because it's printed on the form.
2025 vs. 2026: What Changed From Pay-Stub Estimates to Code TT Reporting
| Issue | Tax year 2025 | Tax year 2026 |
|---|---|---|
| Employer reporting | Optional; no penalty for skipping it | Required on Form W-2 |
| Where it appeared | Box 14, a separate statement, or an online portal | Box 12, Code TT |
| If employer didn't report | Reasonable methods allowed under Notice 2025-69, such as pay stubs or employer records | Get a corrected W-2 (W-2c); unreported amounts may not count |
| Cap and phase-out | $12,500 / $25,000; $150,000 / $300,000 | Same |
In practical terms, 2025 left the figuring to you, and 2026 hands you a single number. That's easier, but it also means a payroll mistake can cost you the deduction unless you catch it.
Withholding, FICA and State Taxes: What the Overtime Deduction Does Not Cover
- Social Security and Medicare still apply. According to the W-2 instructions, qualified overtime is still subject to both the employee and employer shares of Social Security and Medicare tax.
- Federal withholding doesn't change automatically. Your employer keeps withholding income tax on overtime. To have less withheld during the year, give your employer an updated Form W-4. Otherwise you'll see the benefit as a bigger refund or a smaller balance due.
- State income tax depends on your state. This is a federal deduction. Your state may or may not follow it, so check your state tax agency before counting on state savings.
If you get a bigger refund in 2027, use it with a plan. Paying down high-interest balances is often the best return you can get, and our 7-step plan for getting out of debt lays out an order to do it in. If you also contribute to a workplace retirement plan, read our guide to the Roth catch-up rule for 2027, another payroll change that shows up on W-2s.
Key Dates and Common Mistakes
- February 1, 2027: Deadline for employers to furnish 2026 W-2s (IRS W-2 instructions).
- End of February 2027: If a missing or wrong W-2 still hasn't been fixed, contact the IRS.
- April 15, 2027: Usual deadline to file your 2026 return or request an extension.
Common mistakes to avoid:
- Deducting your total overtime pay instead of the Code TT premium.
- Missing Code TT because it's on a second W-2.
- Filing separately while married, which disqualifies you.
- Thinking the deduction also lowers payroll taxes.
- Filing with a blank or wrong Code TT instead of asking for a W-2c first.
Frequently Asked Questions
What does code TT mean in box 12 of my W-2?
Code TT reports your qualified overtime compensation for 2026. That is the premium portion of overtime pay required by the Fair Labor Standards Act, usually the half in time-and-a-half. You use this figure to claim the overtime deduction on Schedule 1-A.
Why is my code TT amount lower than my overtime pay?
Only the extra pay above your regular rate counts. If you earn $24 an hour and get $36 for overtime, only $12 per overtime hour is qualified. The $24 base portion of each hour is ordinary pay.
Is code TT money already excluded from box 1 wages?
No. Your full pay, including overtime, stays in Box 1 as taxable wages. Code TT is an informational amount, and the deduction happens on your tax return through Schedule 1-A.
What if my 2026 W-2 has no code TT but I worked overtime?
Ask your employer for a corrected Form W-2c. For 2026, amounts not reported under Code TT may not count toward the deduction. If the employer hasn't fixed it by the end of February 2027, call the IRS at 800-829-1040 or visit a Taxpayer Assistance Center.
How much overtime can I deduct in 2026?
Up to $12,500, or $25,000 on a joint return. The cap is reduced by $100 for every $1,000 of modified adjusted gross income above $150,000, or $300,000 for joint filers.
Can I claim the overtime deduction if I am married filing separately?
No. Married taxpayers must file a joint return to claim it, and each spouse with qualified overtime needs a Social Security number valid for employment.
Does the overtime deduction reduce Social Security and Medicare taxes?
No. Qualified overtime is still subject to Social Security and Medicare taxes. The deduction reduces only federal income tax.
Do I need to itemize to take the overtime deduction?
No. The deduction is available whether you take the standard deduction or itemize. You claim it on Schedule 1-A.
Sources
- IRS FS-2026-13: Updated Q&A on the qualified overtime deduction
- IRS: Questions and answers about the deduction for qualified overtime compensation
- IRS: What to know about the No Tax on Overtime deduction
- IRS: General Instructions for Forms W-2 and W-3 (2026)
- IRS: Schedule 1-A, Additional Deductions
- IRS: 2026 Schedule 1-A (draft)
- IRS: Form 1040 Instructions
- IRS Notice 2025-69
- IRS: 2025 penalty relief for tips and overtime reporting
- Internal Revenue Manual 21.6.4
- IRS: Modified adjusted gross income
- IRS: If you don't get a W-2 or your W-2 is wrong
This article is educational information, not financial, tax or legal advice. Check your situation with a qualified tax professional.
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